John, you are over analyzing/complicating the original question.
what two different answers are you referring to?
I answered the original question in my original post. That one was simple. It wouldn't work with any FF. In post #9 you told Awl_TEQ the later style closed will work. Heard otherwise. Might be a good place to clear it up.
are you talking about the actual rims themselves? because the thread is about the hub caps, which don't seat against the drum. there were shallower versions of the later style hub caps too.
The two answers I'm talking about is I've read yes and no to if the later hub caps will fit a FF axle.
The point I was making is that Toyota made more than one type of wheel for the 40 series there are more then one type of FF Toyota used on the 40 series. Just because something came on a 40 series that doesn't mean it will fit every 40 series. Was the FF ever offered in a market with 15" hub cap wheels? Do we have part numbers to confirm what will work? I would just like to see if the hub caps work with the two different FF axles before I say for sure it will work. You say they fit and I've read here on mud that they wouldn't. Two different axles may explain this. I don't know. Just wondering why some say they wouldn't work.
As to the later hub caps coming in two different sizes, that is something I hadn't heard before. But wouldn't surprise me.
I guess I was just trying to be helpful. Would hate to have someone buy something only to find out it wouldn't work. Then have to say oh you have a diiferent axle than me. I have both axles and hubs caps here just don't have a 15" disc wheel available to do a test fit. I also don't know was there more than just the two styles of FF? Did the earlier one come with lighter duty brakes?
Post #151 here
https://forum.ih8mud.com/40-55-seri...er-hubcap-not-available-soon-available-8.html This is not the first time I read a statement like this